Supercritical Carbon Dioxide Extraction of Agricultural and Food Processing Wastes and Byproducts

Perretti, Giuseppe; Turner, C.

doi:10.1021/bk-2006-0926.ch002

Cited by 2 publications

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“…Although carotenoid extraction yields obtained from various plant materials and comparison of efficiency among different solvents are presented in literature (Howe & Tanumihardjo, 2006;Taungbodhitham et al, 1998), mainly supercritical CO 2 extraction has been examined for the recovery of carotenoids from tomato waste (Sabio et al, 2003;Perretti, 2006). Moreover, there are limited data about the effect of extraction time, temperature and successive extraction steps.…”

Section: Introductionmentioning

confidence: 99%

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Effect of extraction parameters on the carotenoid recovery from tomato waste

Strati

Oreopoulou

2010

International Journal of Food Science &Amp; Technology

193

105

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Tomato waste is an important source of natural carotenoids. This study was carried out to assess the extractability of tomato waste carotenoids in different organic solvents and to optimise the extraction parameters (type of solvent, extraction time, temperature and extraction steps) for maximum yield. Among other solvents, we tested a new environmentally friendly one, ethyl lactate, which gave the highest carotenoid yield (243.00 mg kg )1 dry tomato waste) at 70°C, compared to acetone (51.90 mg kg )1 ), ethyl acetate (46.21 mg kg )1 ), hexane (34.45 mg kg )1 ) and ethanol (17.57 mg kg )1 ). The carotenoid recovery was significantly (P < 0.05) affected by the number of extraction steps and temperature in all solvents. Mathematic equations predicted rather satisfactorily (R 2 = 0.89-0.93) the rate of carotenoid extraction in the above-mentioned solvents. Carotenoid concentration increased with time, approaching a quasi-saturated condition at approximately 30 min of extraction.

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Section: Introductionmentioning

confidence: 99%

“…, 1998), mainly supercritical CO 2 extraction has been examined for the recovery of carotenoids from tomato waste (Sabio et al. , 2003; Perretti, 2006). Moreover, there are limited data about the effect of extraction time, temperature and successive extraction steps.…”

Section: Introductionmentioning

confidence: 99%